Kev kho cov pa roj rau nyias - zaj duab xis hnub ci vaj huam sib luag yog ib qho nyuaj tab sis tseem ceeb txheej txheem tsim los txo cov kev cuam tshuam ib puag ncig ntawm kev tsim khoom. Cov hauv qab no yog cov ncauj lus kom ntxaws txog cov txheej txheem kev kho cov pa roj rau nyias - zaj duab xis hnub ci:
Exhaust Gas Collection
Ua ntej, cov pa hluav taws xob tsim tawm thaum lub sij hawm tsim khoom yog sau los ntawm kev sau cov pa roj los yog lub kaw lus kaw. Tus tsim ntawm lub hood sau cov pa roj yuav tsum xyuas kom meej kev ntes cov pa pa tawm, txo kev khiav tawm thiab tawm. Lub kaw lus kaw yog siv los kaw cov pa pa tawm hauv ib cheeb tsam tshwj xeeb rau kev kho mob tom ntej.
Kev kho mob ua ntej
Lub pretreatment theem feem ntau tshem tawm cov teeb meem, roj, thiab lwm yam impurities los ntawm cov pa pa. Cov impurities no tuaj yeem ua rau cov cuab yeej kho mob tom ntej los yog txo cov kev kho mob. Cov cuab yeej siv ua ntej siv feem ntau suav nrog cyclone separators, lim, thiab tshuaj tsuag yees. Cov cuab yeej no tau txais txiaj ntsig zoo tshem tawm cov teeb meem thiab qee cov dej- cov tshuaj soluble los ntawm cov pa tso pa tawm.
Tshuaj Absorption
Rau cov tshuaj acidic lossis alkaline hauv cov pa roj, cov tshuaj nqus tsev yog siv. Cov tshuaj nqus dej ntauwd muaj cov kua ntxhua khaub ncaws. Thaum cov pa tso pa dhau los ntawm tus pej thuam, cov kua ntxhua khaub ncaws neutralizes cov khoom tsis zoo hauv cov pa tawm, yog li tshem tawm lawv. Cov txheej txheem no yog qhov tseem ceeb tshwj xeeb rau nyias - zaj duab xis hnub ci vaj huam sib luag cov kab ntau lawm uas tswj cov kua qaub pov tseg uas muaj HF, CO2, thiab lwm yam.
Deep Purification
Tom qab kev kho cov tshuaj nqus, cov pa khib nyiab tseem yuav muaj qee yam teeb meem uas nyuaj rau tshem tawm. Nyob rau hauv cov ntaub ntawv no, sib sib zog nqus purification txoj kev xws li adsorption thiab catalytic oxidation yuav siv tau.
Adsorption: Txoj kev no siv cov adsorbents xws li cov pa roj carbon activated thiab zeolite rau adsorb cov khoom tsis zoo hauv cov pa khib nyiab. Cov pa roj carbon activated, vim nws cov qauv ntxeem tau, muaj peev xwm adsorption muaj zog thiab yog ib txoj hauv kev siv los kho cov pa roj carbon monoxide.
Catalytic Oxidation: Raws li kev ua ntawm cov catalyst, cov khoom tsis zoo hauv cov pa khib nyiab tau oxidized rau hauv qhov tsis muaj teeb meem lossis tsawg - cov tshuaj toxicity. Txoj kev no tsim nyog rau kev kho qis -concentration organic pov tseg roj.
Tsis tas li ntawd, rau cov kuab paug tshwj xeeb xws li nitrogen oxides, xaiv catalytic txo (SCR) lossis xaiv tsis yog-catalytic txo (SNCR) thev naus laus zis kuj tuaj yeem siv rau kev kho mob.
Kev soj ntsuam Emission
Ua ntej cov roj khib nyiab kho tau tawm, cov cuab yeej saib xyuas online yuav tsum tau teeb tsa los saib xyuas cov emissions hauv lub sijhawm. Qhov no yuav pab xyuas kom meej tias cov khoom siv hluav taws xob pov tseg tau ua tau raws li cov qauv hauv cheeb tsam ib puag ncig thiab tso cai rau kev tshawb nrhiav raws sij hawm thiab tuav cov teeb meem ib puag ncig.
Cov pa tawm
Tom qab cov txheej txheem kho mob saum toj no, cov ntsiab lus ntawm cov teeb meem hauv cov pa tawm tau raug txo kom qis dua qhov kev tso cai emission txwv. Nyob rau lub sijhawm no, cov pa tso pa tawm tuaj yeem nyab xeeb tawm mus rau hauv qhov chaw los ntawm lub chimney.
